Specialized actuators driven by oscillatory transducers

An apparatus for urging a movable, driven catheter bi-directionally along constrained paths comprising two orthogonal oscillatory transducers cooperatively driving a plurality of intermediary elements moving said catheter along said constrained paths, wherein said intermediary elements include a length of elastomeric tubing, and an elastomeric disk with a central hole;

• further wherein said orthogonal oscillatory transducers comprise a rotary voice coil element combined with a linear voice coil element in a dual motion transducer, said dual motion transducer moving said catheter through a housing.

An apparatus for moving an object bi-directionally along constrained paths comprising a single oscillatory transducer driving one or more driven members bi-directionally through the use of stroke position selective engagement of one of two oriented fiber strips or strip pairs for moving said object bi-directionally along said constrained paths, wherein said one of two oriented fiber strips or strip pairs are reciprocated while in constant contact with said one or more driven members to urge said driven members in a desired direction under the influence of fiber orientation.

A thruster mechanism for bi-directional movement of an object, said thruster comprising a thruster moving itself relative to a reaction surface, or to drive a driven member relative to itself, by operating said thruster while a surface of a Dynamic Surface Engagement Switch (DSES) is constantly forced against said reaction surface of said driven member, wherein cyclic operation of said DSES and its coordination with the oscillatory linear movement of said DSES by a linear oscillatory transducer achieves bi-directional motion of said object,

• wherein said DSES comprises a housing having a plate therein, said plate having surface deformation pins which are cyclically driven past a contact surface through apertures in said contact surface of said DSES, by the action of a dedicated oscillatory transducer moving said plate having said surface deformation pins thereon.

An apparatus for moving a vehicle power window bi-directionally along constrained paths comprising a pair of pressure pads, each said pressure pad providing a low friction surface against one or the other of a pair of non-perforated push-pull drive tapes, said pressure pads being spring loaded by a pair of springs, and a friction wheel resisting the forces by said pressure pads, said friction wheel being driven in either direction by a gear motor.

A pneumatically driven autonomous robot element comprising dual pneumatic DSES elements including planar contact surfaces with an array of apertures which are cyclically switched form a source of compressed air, which acts as a lubricant to greatly reduce surface friction, to a vacuum source, which acts as a clamping medium increasing contact frictional force, wherein two orthogonal bladder pairs are cyclically pressurized or vented to move a central block, with pneumatic DSES relative to a surrounding frame with pneumatic DSES, wherein all cyclic activity is oscillated at the same frequency, and coordination of phase differences relative to the DSES cycles determines the path of said robotic element which can vector anywhere on a smooth planar surface, wherein two said DSES elements are driven in synchronism but 180 degrees out of phase such that the frame is in a vacuum when said central block is expelling air, and vice-versa.